noun🔗ShareランタノイドAny of the 14 rare earth elements from cerium (or from lanthanum) to lutetium in the periodic table; because their outermost orbitals are empty, they have very similar chemistry; below them are the actinides."Chemists studying the properties of the lanthanides group them together because these elements behave similarly in chemical reactions. "ランタノイドの特性を研究している化学者は、これらの元素が化学反応で同様の振る舞いをするため、それらをまとめています。elementchemistryscienceChat with AIVocabulary GamePractice Reading
